Websites that aggregate a user's personal financial data and other accounts have been around for well over a decade. They started to pop up in the late 1990s as financial institutions began doing business online en masse. Once known rather disparagingly as "screen scrapers," the early versions of these sites offered convenience but at an unknown privacy and security costs. It really was a wild west that has since been mostly tamed. Users today are perfectly comfortable with online business, securely sharing personal information with trusted sources, and they're very quickly getting used to having complex financial tools on their phones.